package Lambda;

import java.util.ArrayList;
import java.util.Collections;
import java.util.Comparator;
import java.util.List;

public class LambdaDemo1 {
    public static void main(String[] args) {
        List<String> list=new ArrayList<>();
        list.add("一二");
        list.add("一");
        list.add("一二三四");
        list.add("一二三");
        System.out.println("原:"+list);
        Collections.sort(list, new Comparator<String>() {
            @Override
            public int compare(String o1, String o2) {
                return o1.length()-o2.length();
            }
        });
        System.out.println("排序后:"+list);

        Collections.sort(list,(o1,o2)->o1.length()-o2.length());
        System.out.println("优化后:"+list);
    }
}
